beemerphile1 wrote:
I don't know what that cover is on top, also don't know what you mean by "regular low profile air conditioning unit". That is a window unit modified for side wall use. Does it look like this on the street side?
It probably should drain out the back of the unit which means down the outside wall.
Hello,
gsragtop said it's a vent to allow the unit to remain cool while operating, which makes complete sense to me. The one you pictured doesn't seem to show one, so maybe it doesn't have one or it's out of the picture? Anyway, I posted a picture of mine right here:
http://www.rv.net/forum/index.cfm/fuseaction/thread/tid/27787552/gotomsg/27787570.cfm#27787570
